@inproceedings{SEGY-ECRTS11,
	author = {Stigge, Martin and Ekberg, Pontus and Guan, Nan and Yi, Wang},
	title = {On the Tractability of Digraph-Based Task Models},
	booktitle = {Proceedings of the 23rd Euromicro Conference on Real-Time Systems (ECRTS)},
	year = {2011},
	pages = {162-171},
	doi = {10.1109/ECRTS.2011.23},
	issn = {1068-3070},
	month = {jul}
}